Home / 45,307.15-67,970.14-13,718.97

Finding the Fourth Proportional to 45,307.15, 67,970.14 and 13,718.97

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Solution

The fourth proportional to 45,307.15, 67,970.14 and 13,718.97 is: 20,581.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,307.15 : 67,970.14 = 13,718.97 : x
  2. Step 2: Convert to fraction form
    45,307.15/67,970.14 = 13,718.97/x
  3. Step 3: Cross multiply
    45,307.15x = 67,970.14 × 13,718.97
  4. Step 4: Simplify right side
    45,307.15x = 932,480,277.26
  5. Step 5: Solve for x
    x = 932,480,277.26/45,307.15
  6. Step 6: Final answer
    x = 20,581.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.